[CI] Refactor use of pwd in Makefile + fixes

[Tankilevitch]

When executing docker run using the makeFile, the $(PWD) variable is not being defined at the container runtime, to use the current working directory anyway the alternative is to use $(shell pwd).

This topic is being discussed in the following links :

• https://jerome-wang.github.io/2015/08/13/pwd-in-sudo-make/
• https://stackoverflow.com/questions/15050748/what-value-does-shell-pwd-give

Also:

• Caching was not working for the migrations CI job because of configuration in the wrong place - fixed that
• Added log to the openapi test